Engine Block - GGP Mountfield SV-150 Workshop Manual

PRINT

6.9 ENGINE BLOCK

GENERAL INFORMATION
This engine is designed to significantly reduce the
need for servicing internal part, which would often
turn out so expensive that it would not be worth the
money.
This chapter describes the only operations that can
be carried out on the engine and how to replace it.
SERVICING PROCEDURES
A) Cleaning the cylinder head
1 Remove the lever system support for carburet-
tor adjustment
2 Loosen the screw (1) fixing the exhaust cover (2)
to the cylinder head (3).
3 Undo the other five screws (4) securing the
cylinder head (3).
4 Remove the gasket (5) and clean the cylinder
head and cylinder surfaces.
5 Turn the flywheel manually to move the piston
and the valves and clean inside the cylinder,
removing any deposits from the valve seats.
6 When mounting:
– the gasket (5) must always be replaced;
– remount the cylinder head (3) and apply the
five screws (4) without screwing them down
tight;
– remount the lever system support for carbu-
rettor adjustment
screws (6) without tightening them;
– tighten the screws (4) and (6) to the specified
levels following the sequence shown in the
diagram: ➀ ➁ ➂ ➃ ➄ ➅ ➆ ➇.
B) Emptying the oil pan
11 Put the lawnmower on a stand (horizontally) to
WORKSHOP MANUAL
6.9.
ENGINE BLOCK
[u 6.5.C] and the spark plug.
[u 6.5.C] and the relative
0
4
3
4
4
5
6
➃
4
4
SV 150
2004
from
page
2
4
1
4
➆ 6
➁
6
➀
➅
4
4
••••
to
1 / 2
3
➄
➂
4
➇
01/2005